A Study of the Scintillation Induced by Alpha Particles and Gamma Rays in Liquid Xenon in an Electric Field

2); (2) Institute of Theoretical; A. Bewick (1); A. S. Howard (1); D. Akimov (2); D. C. R. Davidge (1); D. Shaul (1); Experimental Physics; G. Rochester (1); H. Araujo (1)

arxiv: physics/0502026 · v1 · submitted 2005-02-07 · ⚛️ physics.ins-det

A Study of the Scintillation Induced by Alpha Particles and Gamma Rays in Liquid Xenon in an Electric Field

J. V. Dawson (1) , A. S. Howard (1) , D. Akimov (2) , H. Araujo (1) , A. Bewick (1) , D. C. R. Davidge (1) , W. G. Jones (1) , M. Joshi (1)

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V. N. Lebedenko (1 2) I. Liubarsky (1) J. J. Quenby (1) G. Rochester (1) D. Shaul (1) T. J. Sumner (1) R. J. Walker (1) ((1) Department of Physics Imperial College London (2) Institute of Theoretical Experimental Physics Moscow)

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keywords fieldgammaraysalphaparticlesscintillationelectricfound

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Scintillation produced in liquid xenon by alpha particles and gamma rays has been studied as a function of applied electric field. For back scattered gamma rays with energy of about 200 keV, the number of scintillation photons was found to decrease by 64+/-2% with increasing field strength. Consequently, the pulse shape discrimination power between alpha particles and gamma rays is found to reduce with increasing field, but remaining non-zero at higher fields.

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A Study of the Scintillation Induced by Alpha Particles and Gamma Rays in Liquid Xenon in an Electric Field

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